Watee-oil gas appaeatus



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(No Model.)

Patented Sept. 18,1894.

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"H. FOURNESS. WATER-OIL GAS APPARATUS.

No. 526,364. Patented Sept. 18, 1894.

6 Sheets-Sheet 6.

Wi/Z'Tt 6556; Inventor 912. 9 71 UNITED STATES PATENT OFFICE.

HENRY FOURNESS, OF MANCHESTER, ENGLAND.

WATER-OlL-GAS APPARATUS.

SPECIFICATION forming part of Letters Patent No. 526,364., datedSeptember 18 1894. Application filed December 21, 1892. Serial No.455.875. (No model.) Patented in England September 12, 1891, No. 15,469.

To aZZ whom it may concern.-

Be it known that I, HENRY FOURNESS, a subject of the Queen of GreatBritain, residing at Manchester, in the county of Lancaster and Kingdomof England, have invented certain new and useful Improvements in Water-OiLGas Plants or Apparatus, (patented in Great Britain, No. 15,469,dated September 12, 1891,) of which the following is a specification.

The subject of my invention is a continuously acting plant formanufacturing lighting and heating gas composed of anadmixture of Waterand oil gas, which plant is characterized by the particular arrangementof the fines and construction of the combustion chamber for utilizingthe gas produced during the blowing-up of the coke in the generators forthe purpose of heating the fixing retorts and the arrangement of thevalves for controlling the continuous operation of the plant.

On the sheets of drawings appended hereto, Figure 1, shows a front viewand Fig. 2, a side View of the plant; Fig. 3, a section through thefixing retort and combustion chamber; Figs. 4 and 5, front and sideviews of the retort months; Fig. 6, the arrangement of valve controllingapparatus in elevation partly sectioned; Fig. 7, a plan of the blowervalves; Fig. 8, a sectional elevation of gas check valve, and Fig. 9 asectional plan of gas distributing valve. Fig. 10 is a vertical crosssection of the furnace.

The plant consists of two alternately working generators A, the retortchamber K with chimney, the steam boiler G, and oil cistern J and thenecessary pipes and valves.

The generators A consist each as usual of a shell lined with firebrickand fitted with grate and ashpit closed by doors h, poke and peep-holest', charging hole and cover j, and covers at the top on which the gasconveying elbow pipes at, a are mounted. These are formed with avertical branch plugged by a counter-weighted plug 8 and. serve as peepand poke holes for the purpose of pushing a bar through the coke whenthe latter becomes clogged at the same time acting as safety valve incase an explosion should occur in the generator. At the lower end eachgenerator is fitted with two tuyeres D (Figs. 6 and '7) each of whichcarries a steam jet blower D with an air inlet cock E. The pipe Fleading from the boiler G, to the steam blowers, passes through thechimney and the tines leading to the same as shown on Fig. 2, and thesteam is superheated thereby. The pipe F is connected to the branchpipes ff, leading to the steam jets D, each fitted with a stop valve fwhich however is kept open while the plant is in operation; the steamjet being kept on continuously while the plantis working, the air inletbeing alternately opened for blowing the coke into incandescence andclosed for the production of gas.

In order to assure the alternate working of the generators A, the fourair cocks E are con, nected by wheel gearing, the wheels E on the cockspindles gearing with a wheel O on a vertical shaft (3 operated by ahandle 0. The diameters of the wheels E and C are equal so that aquarter turn of the handle 0 turns the cooks a quarter turn and shuts oropens them.

The oil for gasification flows from thetcistern J, through the pipe r toa pipe '1', arranged over each generator, whence it drops throughadjustable drip cocks into the oil cups d, 'fixed upon the top of siphonpipes making a hydrostatic seal, from which it en ters the generatorsnear to their top ends as usual and falling upon the coke is gasified,the oil gas mixing with the water gas produced by blowing steam throughthe coke. When the heat of the coke has been reduced near to the lowesttemperature required for the decomposition of the steam, the oil supplyis stopped and the steam blast continued to clear the coke and generatorof all residue of oil and oil gas before the air blast for reheating thecoke is turnedon, whereby explosions in the generator are prevented. Thegas produced is conducted through the elbow pipes a, a into the four wayhydraulic valve box B. The latter is arranged similarly to hydraulicvalves for controlling purifiers, and consists of a circular water tankB, Figs. 6 and 9, to which four elbow pipes, a a and o and b are fixed,extending upward into the tank B as shown. The pipes (1 a are connectedto the pipes at, a on the generators respectively, pipe 0 to the pipe0?, leading througha flue to the chimney, and the pipe b to the checkvalve b leading to the range of pipes b 1) (Figs. 1 and 2), extendingover the fronts of the retorts e, and connected to them by the downpipes c.

The generator in which the coke is blown up by the air blast is placedin connection with the pipe 0 while the other generator, in which watergas is produced, is in connection with the pipes 19. This connection iseffected and reversed by means of the bell valve B formed with adiametrical partition 13*, between the central tube B and the outsidewall of bell B. This partition does not extend to the bottom edge of thebell but stops short a certain distance therefrom so that when the bellB is lifted up till the bottom edge of the partition is above the top ofb is interposed.

the pipes (1- a 0, b, the edge of the bell B and tube B are stillimmersed in the water in the tank B. The bell can then be turned by aquarter turn and lowered again whereby the communication of thegenerator with the pipes 0 and b is reversed. In the position of thebell B, shown on the drawings, the water-oil gas from the left generatorpasses through pipes a b, to the pipes b and retorts, the air cocks E ofthe blowers for this generator being closed, and the combustion gas fromthe right generator, the air cocks E of which are open, passes throughpipes a 0 to pipe 0 or chimney. For reversing the communications, thebell B is first lifted by means of the hand wheel 0 the boss of which istapped with a screw thread and threaded upon the screwed part of thespindle 0 To the top plate B of the bell B a long tube B is fixed, whichrests upon the boss of the hand whcel C so that when the latter isturned and screwed upward on the spindle C the bell B is lifted. Thetube B is slotted in one part on both sides and a cotter O passingthrough the slots is fixed in the spindle C By giving the latter aquarter turn by means of the handle 0, the bell is turned to the sameextent and after being lowered by the screwing back of the handwh'eehthe communications are reversed, the pipe 0, now communicatingwith pipe 0, and pipe at with pipe I). The quarter turn of the handle 0simultaneously reverses the cocks E, those on the left hand side beingopened for admitting air to the left generator for blowing up the coke,and those on the right being closed for production of water gas in theright hand generator. By these means the inadverten-t mixing of thewater oil gas from one generator with the combustion gas of the other,which would produce explosions, is prevented. As the lifting of the bellmight draw water oil gas from the retorts through pipes b b, whichmixing with the combustion gas might also cause explosions, the checkvalve This consists of a casing into the lower end of which the pipe 1)extends upward. The space between the casing and pipe contains water, inwhich the bottom edge of the bell b is immersed, the bell being attachedto a rod 19 passing through a stuffing box at the top and attached tothe chain 11 passing over guide pulleys. While the generators areworking the bell is raised and the gas passes through the lateral branchI) of the casing to the pipes b and retorts. Previous to reversal ofvalve B the bell b is lowered and the return flow of gas from theretorts stopped, till the reversal has been effected, when the bell b israised again. The top of the bell B is covered with water as shown, tocool the same.

The water oil gas passing into the retorts e is fixed therein as usual,and in order to enrich it and permit the continuation of the steam blastfor clearing the generator from oil and oil gas as before described,during which a poor gas consisting mainly of water gas is produced, asecond supply of oil is introduced into the retorts in a similar mannerto that described in my British patent, No.15,469, of 1891. From thepipes a" descending from the oil cistern J another range of pipes r isbranched off as shown on Fig. 2, leading to adjustable drip cocks overthe oil cups (1. Two of such oil cups are arranged at the side of eachretort mouth, as shown in detail by Figs. 4 and 5, on the top of siphonpipes for making a hydraulic seal, the oil pipes being connected to gaselbow pipes d inside the retorts. The oil introduced by these becomesgasified in the retorts and mixes with the gas produced in thegenerator, and a sufficiently powerful illuminating gas is thus producedwhile the supply of oil to the generators is shut off, for mixing withthe gas previously produced without materially affecting its quality,and the use of heavy oils low in price is thereby rendered possible.Obviously the oil supply to the retorts may be stopped while that to thegenerator continues, if preferred, each supply being controlled by asingle valve r and 0. From the retorts the gas is led by rising pipes kat the back end to the hydraulic main H, and through valves Z to the gasmain m leading to the gas holder, the pipes 'n serving to draw off thetar, of which only a small quantity is however produced.

A further special feature of the plant is the arrangements for utilizingthe combustion products, produced during the blowing up of the coke inthe generators, for the purpose of assisting in heating the retorts andconsuming the smoke from the retort fires. These combustion gases are asbefore described,.conducted from the generators through the valve chestB to the pipe 0' which leads to a flue 0 (Figs. 2 and 3) above theretorts, through which they can pass directly to the chimney Kwhen thedamper p at the chimney end is opened and the damper 1& closed. When theformer is closed and the latter opened, they pass down a fiue 0 at theside of the retort chamber into a series of horizontal tlues 0 wherethey become mixed with fresh air drawn through the inlets 0 intoascending t1 ues 0 communicating with fines 0 and issue from them into anarrow IIO passage 9 formed in the roof of the fire box of the retortfires. The latter consist as usual of two grates g g with stoke doors 9and charging doors f. The fiame and smoke evolved from the fires ascendto the passage 9 where they meet the current of smoke gases from thegenerator issuing from flues 0 and another current of fresh air admittedthrough the inlets 9 into the flues g which also issue in the passage gThe intermingled smoke and air thence passes into the combustion chamber9 where they are completely burned and thence through openings into roofof the chamber 9 into the retort chamber. whence after circulating roundthe retorts they are conducted through the down fiuesf into the fluef1eading to the chimney. The fiuesf are arranged on each side of the airflues o and g so that the air in these becomes heated before it reachesthe combustion chamber and the fuel and heat are utilized in the bestmanner.

I claim 1. In an apparatus for manufacturing gas, the combination with afixing retort and two generators of a valve casing pipe connecting theinterior of said casing, with the inlet of the fixing retort andalsowith the gas outlet of said generators, a partitioned bell-valvearranged in said casing over the mouths of the pipes therein, said valvehaving an annular wall about its upper face whereby a water chamber isformed and means for turning said valve substantially as set forth.

2. In an apparatus for manufacturing gas, the. combination with twogenerators, each provided with tuyeres and having gas outlets of steamblowers connected to the tuyeres, air-cocks mounted on said blowers andconstructed to admit air thereto, gear wheels on the spindles of saidcocks a four way valve in. communication with the gas outlet of saidgenerators and adapted to control the fiow of gas therefrom, saidvalvehaving a projecting stem and a gear wheel on said stem meshing with thegear Wheels on the respective aircocks, substantially as set'forth.

3. In an apparatus for manufacturing gas the combinationwith a retortfurnace having a fixing retort and a flue communicating with the chimneyof said furnace of a generator having gas outlet pipe constructed forcommunication with the flue of the furnace and also with the inlet ofthe fixing retort therein, a valve controlling the outlet from thegenerator to either said flue of the furnace or the inlet ofthe fixingretort therein, means com 'thecombination with two generators eachhaving a gas outlet pipe and a four way valve controlling the outlets ofboth generators,

means comprising a steam blower and an air-- cock for blowing up saidvgenerator and gear wheels mounted on the spindles of the airgear wheelson the spindles of each of said air-cocks, and a gear wheel on thespindle of the four-way valve, the gear wheels on the air cocks being inmesh with that on the gas valve spindle.

6. In an apparatusfor manufacturing gas, the combinationwith a furnacehaving aflue communicating with chimney and a fixing retort arranged insaid furnace of two generators having gas outlet pipes which communicatewith both the flue of the furnace and the inlet of the retort thereinand a four-way valve controlling the passage through said gas outletpipes to the flue and retort inlet. a 7. In an apparatus formanufacturing gas, the combination with a furnace having a fine and afixing retort arranged in said furnace of twogenerators having gasoutlet pipes which communicate with both the flue of the furnace and theinlet of the retort therein a four way valve controlling the passagethrough said gas outlet pipes to the flue-and retort inlet, meanscomprisinga steam blower and an air cock for blowing up each of saidgenerators and means for operating said air cocks simultaneously withthe operation of the four-way valve.

8. In an apparatus for manufacturing gas, the combination with a furnacehaving a flue communicating with the chimney, and a fixing retortarranged in said. furnace of two generators having gas outlet pipeswhich communicate with both the furnace flue and the retort inlet, afour-way valve controlling the passage through said gas outlet pipes tothe flue and retort inlet, a gear wheel secured to the spindle of saidvalve means comprisinga steam, blower and an air cock for blowing'upeach of said generators and gear wheels secured to the spindles of saidair cocks, and meshing with the gear on the spindle of the four-wayvalve.

9. In an apparatus for manufacturing gas, the combination with a fixingretort and two generators of an annular valve casing, connecting theinterior of valve casing with the retort inlet and the gas outlet ofeach of the said generators, a partitioned bell valve arranged in saidvalve casing over the mouths of the pipes therein, said valve having ascrew threaded stem which projects through the central opening of thevalve casing and engages a correspondingly screw threaded portion of theapparatus.

10. In an'apparatus for manufacturing gas, the combination with a fixingretort and two generators of an annular valve casing, pipes connectingthe interior of said valve casing with the retort inlet and also withthegas outlot of each of said generators, a partitioned bell valvearranged in said valve casing over the mouths of the pipes therein saidvalve havinga hollow stem which projects down through the centralopening of the valve oasing, a screw threaded shaft arranged in thehollow of said stem, a hand wheel having a central screw threaded collarengaging with the :screw threaded shaft below said hollow valve stem,and means for rotating said valve stem.

11. In an apparatus for manufacturing gas the combination with a fixingretort and two generators of an annular valve casing, pipes connectingthe interior of the valve casing with the retort inlet and with the gasoutlet of each of said generators, a partitioned bell valve arranged insaid valve casing over the mouths of the pipes therein said valve havinga hollow stern which projects down through the central opening of thevalve casing, a screw threaded shaft arranged in the hollow of said stema hand wheel having a screw threaded collar, engaging the screw threadedshaft below said hollow valve stem, a collar fixed to said shaf t andengaging vertical guideway in the tubular valve stem and a handlesecured to said shaft below the screw threaded portion thereof. I

12. In an apparatus for manufacturing gas, the-combination with a fixingretort and two generators of means comprising a steam blowerand an aircock for blowing up each of said generators,an annular valve casing,pipes connecting the interior of the valve casing with the retort inletand also with the gas outlet and also with gas outletof each of saidgenerators, a partitioned bell valve arranged in said valve. casing overthe mouths of the pipes therein, said valve having a hollow stemprojecting down through the central opening of the valve casing a screwthreaded shaft arranged in the hollow of said stem, a hand wheel havinga central screw threaded collar engaging the screw threaded shaft belowsaid hollow valve stem, a cotter fixed to said shaft and engagingvertical guide ways in the hollow valve stem, a gear wheel on said shaftbelow said valve stem, gear Wheels on the spindles of the air-cocks ofthe respective generators, said gear wheels on the air cock spindlesengaging with the gear on said screw threaded shaft and a handle onsaidrscrew threaded shaft substantially as set forth.

13. In an apparatus for manufacturing water oil gas, the combinationwith a furnace containing fixing retorts and a flue adjacent to saidretorts and communicating withthe chimney of a generator having a gasoutlet pipe constructed for communication withboth the flue and theinlet of the retorts and a two way valve controlling the outlet from thegenare provided with cups drip cocks fixed above said cups, an oilcistern having an ,oil supply pipe connecting to said drip cocks, siphontubes provided with cups and attached to the covers of said retorts,drip cocks fixed above said cups and an oil supply pip'e leading fromsaid oil cistern to said cocks, substantially as set forth.

14. In an apparatus for manufacturing wate'roil gas the combination witha furnace containing fixing retorts, and a flue adjacent to said retortsand communicating with the chimney, of a generator having a gas outletpipe constructed for communication withboth the flue and the inlets ofthe retorts, and a two way valve controlling the outlet from thegenerator to either said fine or inlets of the fixing retorts, and anoil cistern constructed for supplying both the generator and the retortswith oil substantially as set forth.

15. In an apparatus for manufacturing gas, the combination with afurnace having a flue constructed to communicate with the chimney and afixing retort arrangedin said furnace of two generators having gasoutlet pipes which communicate with both the flue of the furnace, andthe inlet of the retort therein, a four way valve controlling thepassage through said gas outlet pipe to the flue and retort inlet,siphon tubes attached to said generator and a cover of the fixingretorts said siphon tubes being provided'with cups, drip-cocks fixedabove said cups,'and an oil cistern having oil supply pipes connected'tosaid drip cocks substantially as set forth.

16. In an apparatus for manufacturing gas the combination with a furnacehaving a flue and a fixing retort arranged in'said furnace, of twogenerators having gas outlet pipes which communicate with both the flueof the furnace and the inlet of the retort therein, a four way valvecontrolling the passage through said gas outlet pipes to the flueandretort inlet, means comprising a steam blower and an air cock forblowing up each of said generators, and means for operating said aircocks simultaneously with the operationof the four way valve, siphontubes attached to said generators and the cover of the fixing retorts,said siphon tubes being provided with cups, drip cocks fixed above saidcups and an oil cistern having oil supply pipes connected to said dripcocks, substantially as set forth.

17. In an apparatus for manufacturing gas, the combination with a fixingretortand two generators, of means comprising a steam blower and an aircock for blowing up each of said generators, an annular valve casing,pipes connecting the interior of the valve casing over the mouths of thepipes therein,

said valve having a hollow stem projecting through the central openingof the valve casing, a screw threaded shaft below said hollowvalve stem,a cotter fixed to saidshaft, andengaging vertically guide ways in thehollow,- valve-stem, agear .wheelon said shaftbelow said valve stem,gear-wheels onthe spindles of the air-cocks of the respective generatorscocks fixed above said cups, and an oil cistern having oilsu pply pipesconnected to said drip cocks substantially as set forth.

18. In an apparatus for manufacturing water-oil gas the combination witha furnace containing a fixing retort and a flue leading to the chimney,of a generator having a gas outlet constructed for communication withboth the flue and the inlet of the retort, and a valve controlling theoutlet from the generator to either said fiue or inlet of the fixingretort, a damper for closing said flue to the chimney, a flue leadingfrom said flue to a slit in the roof of the firegrate of said furnace, adamper for closing or opening this fiue, air flues constructed to admitair to the flue, air fiues constructed to admit air to said slit, acombustion chamber above the roof of the fire grate and communicatingtherewith through said slit and-having openings communicating with theretort chamber, down fiues from said chamber placed at the side of saidair flues constructed for heating said air flues, substantially as setforth. I r

a 19. In an apparatusfor manufacturing water oil gas,'the combinationwith a furnace having a flue constructed for communication with thechimney and a fixing, retort arrangedin said furnace two generatorshaving gas outlet pipes which communicate with both the flue of thefurnace and the inlet of the retort therein, a four way valvecontrolling the passage through said gas outlet pipes to the fiues andretort inlet, a damper for closing said flue to the chimney, a flueleading from said flue to a slit in the roof of the fire grate of saidfurnace, a damper for closing or opening this flue, air-fluesconstructed to admit air to said slit, a combustion chamber above theroof of the fire grate, and communicating therewith through said slitand having openings communicating with the retort chamber, down fluesfrom said chamber placed at the side of said air flues constructed forheating said air fiues, substantially as set forth.

20. In an apparatus for manufacturing gas, the combination with afurnace having a flue constructed for communication with the chimney,and a fixing retort arranged in said furnace, of, two generators havinggas outlet pipes which communicate with both the furnace flue and theretort inlet, a four way valve controlling thepassage through said gasoutlet pipes to the fiues, and retort inlet, means comprising a steamblower and an air cock for blowing up each of said generators and meansfor operating said air cock simultaneou'sly with the operation of thefour way valve, a damper for closing said flue to the chimney,

a flue leading from said flue to a slit in the .roof of the firegrate ofsaid furnace, a damper for closing or opening this flue, air finesconstructed to admit air to the flue, air flues coustructed to admit airto said slit, a combustion chamber above the roof of the firegrate andcommunicating therewith through said slit and having openingscommunicating with the retort chambers, down flues from said chambersplaced at the side of said air fines constructed for heating said airflues, substantially as set forth.

21. In an apparatus for manufacturing gas, the combination with afurnace containing a fixing retort, and a flue leading to the chimney,of two generators, means comprising a steam blower and an aircock forblowing up each of said generators an annular valve casing with theretort inlet and said flue and also with the gas outlet of eachgenerator, a partitioned bell valve arranged in said valve casing overthe mouth of the pipes therein, said Valve having a hollow stem whichprojectstdown through the central opening of the valve casing a screwthreaded shaftarranged in the hollow of said stem, a handwheel having acentral screw threaded bush engaging with the screw threaded shaft belowsaid tubular valve stem, a cotter fixed to said shaft and engagingvertical guide ways in the hollow-valve-stem, a gear wheel on said shaftbelow said valve stem, gear wheels on the spindles of the air cocks ofthe respective generators, said gear wheels on the air cock spindlesengaging with the gear on said screw threaded shaft a handle, on thesame, a damper for closing said flue to the chimney,

a flue leading from said flue to a slit in the roof of the firegrate ofsaid furnace, damper for closing or opening this flue, air fiuesconstructed to admit air to the flue, air-flues constructed to admit airto the slit, a combustion chamber above the roof of the fire grate andcommunicating therewith through said slit and having openingscommunicating with the retort chamber, down flues from said cham berplaced at the side of said air flues constructed for heating said airflues substantially as set forth. 7

22. In an apparatus for manufacturing water oil gas the combination witha furnace containing a fixing retort and a flue leading to the chimney,of a generator having gas outlet constructed for communication with boththe flueand with the inlet of the retort and a Valve controlling theoutlet from the generator to either said flue or inlet of the fixingretort, a damper for closing said. flue to the chimney, a flue leadingfrom said flue to a slit in the roof of the firegrate of said furnace, adamper for closing or opening this flue air flues constructed to admitair to the flue, air fines constructed to admit air to said slit, acombustion chamber above the roof of the fire grate and communicatingtherewith through said slit and having openings communicatingwith theretort chamber, down fiues from said chamber placed at the side of saidair fiues, constructed for heating said air fines, siphon tubes attachedto said generator and the cover of the fixing retort, said siphontubesbeing provided on their outer ends with cups, dripcocks fixed above saidcups, and an oil cistern having oil supply pipes connected to said dripcocks substantially as set forth.

23. In an apparatus for manufacturing water oil gas, the combinationwith a furnace having a fine constructed for communication with thechimney and a fixing retort arranged in said furnace of two generatorshaving gas outlet pipes which communicate with both the fine of thefurnace and the inlet of the retort therein, a fourway valve controllingthe passage through said gas outlet pipes to the fine and retort inlet,a damper for closing said flue to the chimney, a flue leading from saidflue to a slit in the roof of the firegrate of said furnace, a damperfor closing or opening this fine, air fines constructed to admit air tothe fines, airfiues constructed to admit air to said slit, a combustionchamber above the roof of the firegrate and communicating therewiththrough said slit and having openings communicating with the retortchamber, down fines from said chamber placed at the side of said airfines constructed for heating said air fines, siphon tubes attached tosaid generators, and the cover of the fixing retort, said siphon tubesbeing provided on their outer ends with cups, drip cocks fixed abovesaid cups and an oil cistern having oil supply pipes connected to saiddrip cocks substantially as set forth.

24. In an apparatus for manufacturing gas, the combination with afurnace having a flue constructed for comm unication with the chimney,and a fixing retort arranged in said furnace, of two generators havinggas outlet pipes which communicate with both the furnace fine and theretort inlet, a four way valve controlling the passage through said gasoutlet pipes to the fine and retort inlet, means comprising a steamblower and an aircock for blowing up each of said generators and meansfor operating said aircocks simultaneously with the operation of the twoway valve, a damper for closing said flue to the chimney, a flue leadingfrom said fine to a slit in the roof of the firegrate of said furnace adamper for closing or opening this flue, airfiues constructed to admitair to the fine, air fines constructed to admit air to said slit, acombustion chamber above the roof of the firegrate and communicatingtherewith through said slit and having openings communicating with ,theretort chamber, down fines from said chamber placed at the side of saidair fines constructed for heating said air fines, siphon tubes attachedto said generators and the covers of the fixing retort, said siphontubes being provided on their outer ends with cups, drip cocks fixedabove said cups and an oil cistern having oil supply pipes connected tosaid drip cocks substantially as set forth.

. 25. In anapparatns for manufacturing gas, the combination with afurnace containing a fixing retort and a fine leading to the chim Fneyof two generators, means comprising a steam blower, and an air cock forblowing up each of said generators an annular valve casing, pipesconnecting the interior of the valve casing with the retort inlet andsaid fine, and also with the gas outlet of each generator, a partitionedbell valve arranged in said valve casing over the mouths of the pipestherein, said valve having a hollow stem which pro- .jects down throughthe central opening of the valve casing, a screw threaded shaft arrangedin the hollow of said stem a handwheel having a central screw threadedbush engaging with the screw threaded shaft below said tubular valvestem a cotter fixed to said shaft and engaging vertical guide ways inthe hollow valve stem, a gear wheel on said shaft below said valve stem,gear wheels on the spindles of the air cocks of the respectivegenerators, said gear wheels on the a r cocks spindles engaging with thegear on said screw threaded shaft, a handle on the same,adamper forclosing said flue to the chimney a flue leading from said line to a slitin the roof of the firegrate of said furnace, a damper for.

closing or opening this fine, air fines constructed to admit air to theflue, air fines constructed to admit air to the slit, a combustionchamber above the roof of the firegrate and communicating therewiththrough said slit and having openings communicating with the retortchamber, down flues from said chamber placed at the side of said airfines constructed for heating said air flues, siphon tubes attachedtosaid generators and the cover of the fixing retort, said siphon tubesbeing provided on their outer ends with cups, dripcocks fixed above saidcups and an oil cistern having oil supply pipes connected to saiddripcocks substantially as set forth.

26. In a water-oil gas plant the combination with two generatorsAoftuyere D fitted with steam blowers D, and air cocks E, steam pipes f,connected to steam blower, and to steam pipe F, from boiler G, wheels E0 connecting air cocks to spindle G a handle 0 fixed on spindle ahandwheel C forming a nut on screw part of spindle C a four way valveconsisting of tank B with pipescfl, a b, 0, and bell B, with partition Ba tubular sleeve 5, attached to bell B, and resting on hand wheel 0 andconnected to the spindle C by a cotter 0 pipes at and a, connecting thegenerator to the fourway valve, check valve B connecting bell B, withrange of pipes b, pipes 0 connecting them to the retorts e, pipes aconnecting pipe 0, to fine 0 leading to chimney, and oil cistern J, withpipes r r, fitted with drip cocks supplying oil to the generators andpipes r r fitted with drip cocks supplying oil to the retorts esubstantially as and for the purposes set forth.

27. In a water oil gas plant the combination with two generators A oftuyeres D, fitted with steam blowers D, and air cockE steam pipes F,from boiler G, wheels E, 0, connecting air cocks to spindle G a handle0, fixed thereon a handwheel 0 forming a nut on a screwed part ofspindle 0 a hydraulic four way valve B,with bell B, and sleeve Battached to said bell and resting on handwheel O and connected by acotter to spindle C pipes connecting the generators to the fourway valvecheck valves 6 connecting pipe I), with pipes b, pipes 0, connectingthese with, retorts e, a retort chamber containing fine 0 connected tothe fourway valve, dampers 19, p smoke fines 0 0 air flues 0 with inlets0 air fines g withinlet g smoke flues f and f retort furnaces withgrates g, and roof containing slit g and combustion chamberg, an oilcistern J,with pipes supplying the generators as well as the retortsthrough drip cocks, substantially as and for the purposes set forth.

28 In an apparatus for manufacturing water oil gas the combination witha furnace containing fixing retorts, and a flue adjacent to said retortsand communicating with the chimney, of a generator having a gas outletpipe constructed for communication with both the flue and the inlets ofthe retorts, and a two Way valve controlling the outlet from thegenerator to'either said flue or inlets of the fixing retorts, and meansfor supplying both the generator and the retorts with oil substantiallyas set forth.

29. In an apparatus for manufacturing gas, the combination with afurnace having afiue constructed to communicate with the chimney and afixing'retort arranged in said. furw nace of two generators having gasoutlet pipes which communicate with both the flue of the furnace and theinlet of the retort therein, a four way valve controlling the passagethrough said gas outlet pipe to thefiue and retort inlet, siphon tubesattached to' said generators and a cover of the fixing retorts saidsiphon tubes being provided with cups, drip cocks fixed above said cups,and an oil cistern having oil supply pipes connected to said drip cocks,fixed above said cups and supplied with oil substantially as set forth.

In testimony whereof I have hereto set my hand in presence of twoWitnesses.

HENRY FOURNESS.

